/**
 * This file is part of 1genia trampoline
 * Copyright (C) 2007 1genia (contact@1genia.com)
 *
 * This library is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; version 3 of the License. 
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details. 
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; see the file COPYING.TXT.  If not,
 * write to the Free Software Foundation, Inc., 51 Franklin Street,
 * Fifth Floor, Boston, MA 02110-1301, USA. 
 **/
package com.genia.toolbox.basics.bean.impl;

import java.io.IOException;
import java.io.InputStream;
import java.net.URL;

import com.genia.toolbox.basics.exception.technical.TechnicalException;
import com.genia.toolbox.basics.exception.technical.TechnicalIOException;

/**
 * a {@link com.genia.toolbox.basics.bean.DataContainer} backed by an URL.
 */
public class UrlDataContainer
    extends AbstractDataContainer
{

  /**
   * getter for the name property.
   * 
   * @return the name
   * @see com.genia.toolbox.basics.bean.impl.AbstractDataContainer#getName()
   */
  @Override
  public String getName()
  {
    String name = super.getName();
    if (name == null) {
      return getUrl().getPath().substring(getUrl().getPath().lastIndexOf('/') + 1);
    }
    return name;
  }

  /**
   * the {@link URL} that back this
   * {@link com.genia.toolbox.basics.bean.DataContainer}.
   */
  private URL url;



  /**
   * returns the {@link InputStream} containing the file datas.
   * 
   * @return the {@link InputStream} containing the file datas
   * @throws TechnicalException
   *           when an error occured
   * @see com.genia.toolbox.basics.bean.DataContainer#getInputStream()
   */
  public InputStream getInputStream()
      throws TechnicalException
  {
    try {
      return getUrl().openStream();
    }
    catch (IOException e) {
      throw new TechnicalIOException(e);
    }
  }



  /**
   * getter for the url property.
   * 
   * @return the url
   */
  public URL getUrl()
  {
    return url;
  }



  /**
   * setter for the url property.
   * 
   * @param url
   *          the url to set
   */
  public void setUrl(URL url)
  {
    this.url = url;
  }

}
